Automatic fan



UNITED STATES PATENT oEEioE. N

L. REBSTOGK AND N. REIMEL, OF PHILADELPHIA, PENNSYLVANIA.

AUTOMATIC FAN.

Specification of Letters Patent No. 17,517, dated June 9, 1857.

To all who/m, 'it may concern:

Be it known that we, LAWRENCE BEB- s'rook and NICHOLAS REIM'EL, ofPhiladelphia, in the county of Philadelphia and State of Pennsylvania,have invented a new and Improved Ventilating-Fan; and we do herebydeclare that the following is a. full,

clear, and exact description of the same,

will proceed to describe it.

A represents the base of the implement, which may be constructed of woodor other material, and of circular form. This base is placed uponcasters (a) of the usual construction. On the upper surface of the base,near its edge, an annular groove, B, is made, and C is a circularplatform supported by two pedestals, (b) (b), and two hollow uprights,D, D, the uprights passing through the platform and extending upward asuitable distance. The lower ends of the pedestals, (Z2) and uprights,D, D, are provided with rollers or casters (c) the peripheries of whichare fitted in the groove, B. The under side of the platform, C, has apendent rod, E, attached to it; the lower end of said rod being placedor fitted in a step (el) at the center of the base, A. The platform,therefore, with its pedestals and uprights, may be rotated or turnedupon the base, A, the above parts being secured upon the base by thependent rod, E, and the rollers or casters (c) which fit or work in thegroove, B.

F, F, represent two uprights, attached to the platform, C, and G is afan, the shaft (e) of which works in bearings in the upper ends of theuprights, F, F. The shaft (e) has three or more radial rings (f)attached to it; and a pinion (g) is Placed on each end of the fan shaft(e). H, H, are two toothed wheels, the aXes (7L) (h) of which passtransversely through the upper ends of the uprights, D, D, one througheach, and a drum (i) is placed on each axis (it), the drums being withinthe uprights, and having cords and weights (le) attached to them; seedotted lines in Fig. l.

The wheels, H, H, gear into the pinions (g) (g) on the fan shaft (e),and the wheels H, H, are placed loosely on their aXes, and connectedwith them, when they are turned in one direction and rotate the fan G,by pawls (l) and ratchets (071,); the axes being disconnected from thewheels when turned in the opposite direction; so that the cords (j) maybe wound upon the drums without operating the fan and wheels. The endsof the axes (7L) are made square to receive a key for winding up theweights.

The wheel, H', gears into a pinion (n) on a shaft (o) the ends of whichare fitted in pendents, (p), at the ends of a bar (g) attached to theupper end of one of the uprights, F. The outer vend of the shaft (o) hasa scape wheel (r) upon it, and (s) is a pallet which works into thescape wheel (10,' the pallet being connected with a pendulum (slby acrutch (t) these parts being arranged precisely similar to those in anordinary clock.

When the cords (j) are wound upon the drums (i) the fan G will berotated by the.

gearing or clock movement described, and a blast ofair will of course beproduced by the rotation of the fan. By turning the platform, C, on thebase, A, the fan G may be placed in any relative position with theperson receiving the blast, so that. the person may receive the blastmore or less direct, and consequently of a greater or less strength, asdesired.

The above implement being on casters may be readily moved from place toplace. It may be placed at the bed-side, and kept in operation duringthe night, or it may be placed near a reading or dining table, or by anescritoire, to fan the persons sitting at such articles of furniture.The device is very compact, and when not used as a ventilator, theplatform, C, may serve as a sewing or work table, and may, if desired,be provided with drawers.

I do not claim, broadly, the driving of revolving fans by clockwork, assuch contrivances have long been known and used. Neither do I clailn,broadly, the revolving of mechanism around a given axis, by placing themechanism upon movable frames.

The rotating domes of Observatories, telescope stands, and other speciesof mechanism are examples of this kind. But to the best of my knowledgeand belief, there never has been made a fan driven by clockwork andarranged as herein shown, so as to be capable of being readily turnedupon an axis Without moving the whole apparatus. The current of air isthus readily directed toward any given point in an apartment. Myinvention therefore constitutes a new and useful article of manufacture.No apparatus like it has ever before been known or used. Therefore,

I claim and desire to secure by Letters l0 Patent, as a new article ofmanufacture- A Ventilating fan, constructed as herein Witnesses:

HUGH CLARK, CONRAD H. YEARLY.

